<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>面向对象封装消息提示</title>
    <style>
        .modal {
            width: 300px;
            min-height: 100px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
            border-radius: 4px;
            position: fixed;
            z-index: 999;
            left: 50%;
            top: 50%;
            transform: translate3d(-50%, -50%, 0);
            background-color: #fff;
        }

        .modal .header {
            line-height: 40px;
            padding: 0 10px;
            position: relative;
            font-size: 20px;
        }

        .modal .header i {
            font-style: normal;
            color: #999;
            position: absolute;
            right: 15px;
            top: -2px;
            cursor: pointer;
        }

        .modal .body {
            text-align: center;
            padding: 10px;
        }

        .modal .footer {
            display: flex;
            justify-content: flex-end;
            padding: 10px;
        }

        .modal .footer a {
            padding: 3px 8px;
            background: #ccc;
            text-decoration: none;
            color: #fff;
            border-radius: 2px;
            margin-right: 10px;
            font-size: 14px;
        }

        .modal .footer a.submit {
            background-color: #369;
        }
    </style>
</head>

<body>
    <button id="delete">删除</button>
    <button id="login">登录</button>

    <!-- <div class="modal">
    <div class="header">温馨提示 <i>x</i></div>
    <div class="body">您没有删除权限操作</div>
  </div> -->


    <script>
        // 模态框的构造函数
        function Modal(tital, message) {
            // 公共属性部分
            this.tital = tital
            this.message = message
            // 提示框盒子是公共的
            this.modalBox = document.createElement('div')
            this.modalBox.className = 'modal'
            this.modalBox.innerHTML = `
                <div class="header">${this.tital} <i>x</i></div>
                <div class="body">${this.message}</div>
            `
        }

        // 打开模块
        Modal.prototype.open = function () {
            if (!document.querySelector('.modal')) {
                // 把modalBox渲染到页面中
                document.body.appendChild(this.modalBox)
                this.modalBox.querySelector('i').addEventListener('click', () => {
                    this.close()
                })
            }
        }

        // 关闭模块
        Modal.prototype.close = function () {
            document.body.removeChild(this.modalBox)
        }

        // 获取事件
        document.querySelector('#delete').addEventListener('click', () => {
            const m = new Modal('温馨提示', '你没有权限删除')
            m.open()
        })
        document.querySelector('#login').addEventListener('click', () => {
            const m = new Modal('提示', '你还没有注册账号')
            m.open()
        })
    </script>
</body>

</html>